How do I know if I have alcohol flush reaction?
The term alcohol flush reaction, also known as Asian flush or Asian glow, refers to the red face commonly experienced after consuming alcohol. This happens because of a genetic ALDH2 enzyme deficiency common in, but not exclusive to, people of Asian origin.
The functionality of the ALDH2 enzyme is a crucial element in breaking down a toxic metabolite of alcohol called acetaldehyde and it's deficiency causes a toxic buildup whenever alcohol is consumed. This results in a variety of unpleasant reactions that include facial flushing, headaches, nausea and a general feeling of discomfort.